$202+ Cheap flights from Ontario (ONT) to Caribbean
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Aug 17 — Aug 241
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Caribbean with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Ontario to CaribbeanExplore the most affordable flight options available from Ontario to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
Explore the most affordable flight options available from Ontario to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Sat 10/317:25 am
SJU
- ONT
2 stops16h 31m
United Airlines
Deal found 7/12![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:13 pm
ONT
- SJU
2 stops17h 29m
United Airlines
Sun 9/67:00 am
SJU
- ONT
2 stops16h 01m
United Airlines
Deal found 7/17![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:05 pm
ONT
- SJU
2 stops10h 15m
Southwest
Fri 10/305:00 am
SJU
- ONT
2 stops12h 25m
Southwest
Deal found 7/14![Southwest logo]()
$414
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:55 am
ONT
- SJU
2 stops12h 00m
Southwest
Mon 11/165:45 am
SJU
- ONT
2 stops12h 55m
Southwest
Deal found 7/16![Southwest logo]()
$435
This American Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:34 pm
ONT
- SJU
1 stop10h 30m
American Airlines
Fri 11/136:44 am
SJU
- ONT
1 stop19h 39m
American Airlines
Deal found 7/13![American Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am
ONT
- SJU
1 stop9h 25m
United Airlines
Mon 11/98:05 am
SJU
- ONT
2 stops16h 01m
United Airlines
Deal found 7/16![United Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:55 am
ONT
- SJU
2 stops12h 00m
Southwest
Sat 11/145:40 am
SJU
- ONT
2 stops13h 20m
Southwest
Deal found 7/14![Southwest logo]()
$462
This Southwest deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:30 pm
ONT
- SJU
2 stops11h 25m
Southwest
Sat 8/225:05 am
SJU
- ONT
2 stops12h 25m
Southwest
Deal found 7/13![Southwest logo]()
$463
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:55 am
ONT
- SJU
2 stops12h 00m
Southwest
Sun 11/155:35 am
SJU
- ONT
2 stops12h 30m
Southwest
Deal found 7/16![Southwest logo]()
$471
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:35 pm
ONT
- NAS
2 stops17h 40m
Southwest
Tue 8/181:10 pm
NAS
- ONT
2 stops10h 45m
Southwest
Deal found 7/14![Southwest logo]()
$524
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:00 am
ONT
- MBJ
1 stop8h 50m
United Airlines
Tue 12/82:48 pm
MBJ
- ONT
2 stops29h 59m
United Airlines
Deal found 7/13![United Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:29 am
ONT
- PLS
2 stops22h 57m
American Airlines
Sat 8/291:11 pm
PLS
- ONT
2 stops23h 23m
American Airlines
Deal found 7/13![American Airlines logo]()
$538
Best flights from Ontario to CaribbeanDiscover carefully curated flight deals from Ontario to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
Discover carefully curated flight deals from Ontario to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:53 pm
ONT
- SJU
2 stops12h 57m
United Airlines
Thu 12/172:21 pm
SJU
- ONT
1 stop10h 48m
United Airlines
Deal found 7/14![United Airlines logo]()
$404
This JetBlue deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:13 pm
ONT
- SJU
1 stop10h 12m
JetBlue
Fri 9/1110:30 am
SJU
- ONT
1 stop12h 43m
JetBlue
Deal found 7/15![JetBlue logo]()
$546
This Frontier deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:17 am
ONT
- SDQ
2 stops23h 46m
Frontier
Sun 8/1612:55 pm
SDQ
- ONT
2 stops22h 08m
Frontier
Deal found 7/17![Frontier logo]()
$649
This Delta deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:00 pm
ONT
- NAS
1 stop10h 51m
Delta
Fri 8/281:16 pm
NAS
- ONT
1 stop8h 14m
Delta
Deal found 7/14![Delta logo]()
$706
This American Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:04 pm
ONT
- BGI
2 stops24h 12m
American Airlines
Mon 9/284:06 pm
BGI
- ONT
2 stops23h 00m
American Airlines
Deal found 7/17![American Airlines logo]()
$912
This Expedia deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:10 pm
ONT
- BGI
1 stop11h 45m
Multiple Airlines
Mon 9/284:20 pm
BGI
- ONT
2 stops25h 51m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$922
This United Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:00 am
ONT
- SJU
2 stops13h 50m
United Airlines
Tue 9/157:00 am
SJU
- ONT
2 stops16h 01m
United Airlines
Deal found 7/15![United Airlines logo]()
$494
This Avianca deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:35 pm
ONT
- CUR
2 stops14h 25m
Avianca
Thu 9/1011:35 am
CUR
- ONT
2 stops13h 10m
Avianca
Deal found 7/13![Avianca logo]()
$1,223
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:00 am
ONT
- MBJ
1 stop8h 45m
United Airlines
Tue 10/2712:25 pm
MBJ
- ONT
2 stops35h 25m
United Airlines
Deal found 7/14![United Airlines logo]()
$557
This JetBlue deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:13 pm
ONT
- SJU
1 stop12h 01m
JetBlue
Wed 9/21:13 pm
SJU
- ONT
1 stop12h 24m
JetBlue
Deal found 7/12![JetBlue logo]()
$626
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:00 am
ONT
- SJU
1 stop9h 38m
United Airlines
Sun 9/272:00 pm
SJU
- ONT
1 stop9h 58m
United Airlines
Deal found 7/14![United Airlines logo]()
$557
This JetBlue deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:59 pm
ONT
- SJU
1 stop13h 58m
JetBlue
Thu 8/271:13 pm
SJU
- ONT
1 stop12h 25m
JetBlue
Deal found 7/17![JetBlue logo]()
$629
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 am
ONT
- SJU
1 stop11h 38m
United Airlines
Mon 10/192:00 pm
SJU
- ONT
1 stop9h 58m
United Airlines
Deal found 7/14![United Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:00 am
ONT
- MBJ
2 stops28h 43m
United Airlines
Sat 10/1012:52 pm
MBJ
- ONT
2 stops25h 26m
United Airlines
Deal found 7/13![United Airlines logo]()
$570
This JetBlue deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:13 pm
ONT
- AUA
1 stop14h 25m
JetBlue
Sat 9/512:50 pm
AUA
- ONT
1 stop12h 09m
JetBlue
Deal found 7/15![JetBlue logo]()
$690
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 pm
ONT
- PLS
2 stops15h 40m
Delta
Sun 9/202:05 pm
PLS
- ONT
1 stop11h 21m
Delta
Deal found 7/16![Delta logo]()
$892
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:18 pm
ONT
- MBJ
2 stops20h 25m
United Airlines
Thu 9/1712:52 pm
MBJ
- ONT
2 stops36h 07m
United Airlines
Deal found 7/13![United Airlines logo]()
$575
This JetBlue deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:59 pm
ONT
- PUJ
1 stop10h 30m
JetBlue
Thu 9/311:30 am
PUJ
- ONT
1 stop14h 08m
JetBlue
Deal found 7/13![JetBlue logo]()
$711
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:20 am
ONT
- BGI
2 stops28h 42m
American Airlines
Tue 9/298:00 am
BGI
- ONT
2 stops17h 35m
American Airlines
Deal found 7/15![American Airlines logo]()
$1,009
This Delta deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:00 pm
ONT
- CUR
1 stop12h 49m
Delta
Fri 9/43:15 pm
CUR
- ONT
2 stops24h 01m
Delta
Deal found 7/14![Delta logo]()
$951
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:18 pm
ONT
- MBJ
2 stops44h 25m
United Airlines
Sun 9/1312:52 pm
MBJ
- ONT
2 stops34h 01m
United Airlines
Deal found 7/17![United Airlines logo]()
$593
This JetBlue deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:10 pm
ONT
- SDQ
1 stop10h 31m
JetBlue
Fri 9/186:45 am
SDQ
- ONT
1 stop16h 28m
JetBlue
Deal found 7/13![JetBlue logo]()
$734
This FlightHub deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:10 pm
ONT
- CUR
2 stops36h 00m
Multiple Airlines
Fri 10/22:40 pm
CUR
- ONT
1 stop32h 33m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$1,096
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:00 am
ONT
- KIN
2 stops11h 12m
American Airlines
Wed 8/56:05 am
KIN
- ONT
2 stops14h 10m
American Airlines
Deal found 7/15![American Airlines logo]()
$1,049
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:00 am
ONT
- SJU
2 stops12h 38m
United Airlines
Sat 10/242:00 pm
SJU
- ONT
1 stop9h 58m
United Airlines
Deal found 7/13![United Airlines logo]()
$600
This Justfly.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:59 pm
ONT
- NAS
1 stop13h 05m
JetBlue
Wed 9/21:30 pm
NAS
- ONT
1 stop12h 07m
JetBlue
Deal found 7/17![JetBlue logo]()
$772
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:00 am
ONT
- SJU
1 stop9h 25m
United Airlines
Wed 12/93:46 pm
SJU
- ONT
1 stop9h 35m
United Airlines
Deal found 7/16![United Airlines logo]()
$630
This Priceline deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:10 pm
ONT
- SDQ
1 stop17h 45m
JetBlue
Wed 10/76:45 am
SDQ
- ONT
1 stop16h 28m
JetBlue
Deal found 7/17![JetBlue logo]()
$781
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:00 am
ONT
- MBJ
2 stops28h 43m
United Airlines
Mon 10/1912:52 pm
MBJ
- ONT
2 stops49h 54m
United Airlines
Deal found 7/17![United Airlines logo]()
$643
This JetBlue deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:13 pm
ONT
- SDQ
1 stop12h 10m
JetBlue
Fri 9/116:45 am
SDQ
- ONT
1 stop16h 28m
JetBlue
Deal found 7/17![JetBlue logo]()
$842
Last-minute flights from Ontario to CaribbeanDiscover last-minute flight deals from Ontario to Caribbean. Data last updated July 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Caribbean. Data last updated July 18, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:34 am
ONT
- SJU
2 stops13h 25m
American Airlines
Mon 8/312:58 am
SJU
- ONT
1 stop11h 31m
American Airlines
Deal found 7/12![American Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:59 pm
ONT
- SJU
2 stops20h 41m
American Airlines
Wed 8/127:03 am
SJU
- ONT
2 stops14h 12m
American Airlines
Deal found 7/13![American Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:15 am
ONT
- SJU
2 stops14h 44m
American Airlines
Thu 8/1312:55 am
SJU
- ONT
2 stops14h 08m
American Airlines
Deal found 7/16![American Airlines logo]()
$496
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:40 pm
ONT
- SJU
2 stops11h 20m
Southwest
Thu 8/136:30 am
SJU
- ONT
2 stops12h 00m
Southwest
Deal found 7/16![Southwest logo]()
$481
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:35 pm
ONT
- NAS
2 stops17h 40m
Southwest
Tue 8/181:10 pm
NAS
- ONT
2 stops10h 45m
Southwest
Deal found 7/14![Southwest logo]()
$524
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:00 am
ONT
- MBJ
2 stops30h 30m
United Airlines
Sat 9/122:40 pm
MBJ
- ONT
1 stop9h 19m
United Airlines
Deal found 7/13![United Airlines logo]()
$537
This Southwest deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:30 pm
ONT
- SJU
2 stops11h 25m
Southwest
Sat 8/225:05 am
SJU
- ONT
2 stops12h 25m
Southwest
Deal found 7/13![Southwest logo]()
$463
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:13 pm
ONT
- SJU
2 stops17h 29m
United Airlines
Sat 8/297:00 am
SJU
- ONT
2 stops16h 01m
United Airlines
Deal found 7/17![United Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:29 am
ONT
- PLS
2 stops22h 57m
American Airlines
Sat 8/291:11 pm
PLS
- ONT
2 stops23h 23m
American Airlines
Deal found 7/13![American Airlines logo]()
$538
This American Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:33 pm
ONT
- SJU
2 stops18h 10m
American Airlines
Mon 8/317:24 pm
SJU
- ONT
2 stops17h 10m
American Airlines
Deal found 7/17![American Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:00 am
ONT
- SJU
2 stops12h 38m
United Airlines
Wed 9/27:00 am
SJU
- ONT
2 stops14h 16m
United Airlines
Deal found 7/13![United Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:13 pm
ONT
- SJU
2 stops17h 29m
United Airlines
Sun 9/67:00 am
SJU
- ONT
2 stops16h 01m
United Airlines
Deal found 7/17![United Airlines logo]()
$404
One-way flights from Ontario to CaribbeanSearch for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
Search for one-way flight options from Ontario to Caribbean. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:05 am
ONT
- SJU
1 stop12h 24m
Delta
Deal found 7/16![Delta logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/159:36 am
ONT
- SJU
2 stops35h 52m
Frontier
Deal found 7/16![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:08 pm
ONT
- SJU
2 stops23h 24m
Frontier
Deal found 7/17![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:40 pm
ONT
- SJU
2 stops37h 17m
Frontier
Deal found 7/17![Frontier logo]()
$231
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:15 am
ONT
- SJU
2 stops14h 44m
American Airlines
Deal found 7/16![American Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:09 pm
ONT
- SJU
2 stops36h 48m
Frontier
Deal found 7/16![Frontier logo]()
$236
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:13 pm
ONT
- SJU
2 stops17h 29m
United Airlines
Deal found 7/13![United Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:40 pm
ONT
- SJU
2 stops25h 02m
Frontier
Deal found 7/17![Frontier logo]()
$240
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:00 am
ONT
- MBJ
1 stop8h 45m
United Airlines
Deal found 7/13![United Airlines logo]()
$252
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:18 pm
ONT
- MBJ
2 stops20h 25m
United Airlines
Deal found 7/13![United Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:55 pm
ONT
- PUJ
3 stops42h 15m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$260
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:18 pm
ONT
- PLS
2 stops23h 47m
United Airlines
Deal found 7/14![United Airlines logo]()
$282
Find flight deals from Ontario to Caribbean
Keep the following information in mind while searching for Ontario to Caribbean flight deals. Data was last updated July 18, 2026.
Round-trip from | $384 (United Airlines) |
|---|---|
One-way from | $202 (Delta) |
Popular in | June |
Cheapest in | October |
Average price | $547 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Caribbean that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
Use the filters below to find and compare flights from Ontario to Caribbean that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 12/5
6:53 pm-11:50 am
2 stops12h 57m
San Juan Luis Munoz Marin Intl
Thu 12/17
2:21 pm-9:09 pm
1 stop10h 48m
$404
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 9/12
7:00 am-11:50 pm
2 stops13h 50m
San Juan Luis Munoz Marin Intl
Tue 9/15
7:00 am-8:01 pm
2 stops16h 01m
$494
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 9/5
11:13 pm-12:25 pm
1 stop10h 12m
San Juan Luis Munoz Marin Intl
Fri 9/11
10:30 am-8:13 pm
1 stop12h 43m
$546
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 10/24
5:00 am-3:45 pm
1 stop8h 45m
Montego Bay Sangster Intl
Tue 10/27
12:25 pm-9:50 pm
2 stops35h 25m
$557
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Thu 9/24
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Sun 9/27
2:00 pm-8:58 pm
1 stop9h 58m
$557
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Fri 10/16
6:00 am-8:38 pm
1 stop11h 38m
San Juan Luis Munoz Marin Intl
Mon 10/19
2:00 pm-8:58 pm
1 stop9h 58m
$557
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Mon 10/5
5:00 am-11:43 am
2 stops28h 43m
Montego Bay Sangster Intl
Sat 10/10
12:52 pm-12:18 pm
2 stops25h 26m
$570
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Thu 9/10
1:18 pm-11:43 am
2 stops20h 25m
Montego Bay Sangster Intl
Thu 9/17
12:52 pm-10:59 pm
2 stops36h 07m
$575
OntarioMontego Bay
ONT - MBJ
ONTMBJ
Ontario
Sat 9/5
1:18 pm-11:43 am
2 stops44h 25m
Montego Bay Sangster Intl
Sun 9/13
12:52 pm-8:53 pm
2 stops34h 01m
$593
OntarioSan Juan
ONT - SJU
ONTSJU
Ontario
Sat 10/17
5:00 am-8:38 pm
2 stops12h 38m
San Juan Luis Munoz Marin Intl
Sat 10/24
2:00 pm-8:58 pm
1 stop9h 58m
$600
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Caribbean
Have a flexible travel schedule? Discover the best time to fly to Caribbean from Ontario with our price prediction graph.
ONT-SJU
ONT-SDQ
ONT-NAS
ONT-BGI
ONT-CUR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Caribbean
ONT-0CB
ONT-SJU
ONT-SDQ
ONT-NAS
ONT-BGI
What is the cheapest month to book a flight from Ontario to Caribbean?
Currently, February is the cheapest month in which you can book a flight from Ontario to Caribbean (average of $504). Flying from Ontario to Caribbean in December is currently the most expensive (average of $736). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Ontario to Caribbean?
Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Caribbean. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Caribbean
Get insights into the airlines that provide service to Caribbean. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean. Reviews last updated July 18, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines from Ontario to Caribbean. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Caribbean. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ontario to Caribbean
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Caribbean by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Caribbean by cabin class
Find flights from Ontario to Caribbean, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Caribbean flights
Browse other Ontario and Caribbean flight options. Last updated on July 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Caribbean countries
Consider these flights traveling to countries located in Caribbean.
Ontario to Caribbean flights
Consider these flights traveling from Ontario to Caribbean.
Top 6 airlines flying from Ontario to Caribbean
Discover the top 6 airlines that operate flights from Ontario to Caribbean. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$530 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$176 | Average$513 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$318 | Average$630 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$360 | Average$665 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$419 | Average$659 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$421 | Average$652 | FlexibilityNo cancel fee | On-time62% |